Quick start

1. Open image (or pick an example). RAW — NEF or DNG — unlocks the full color range.
2. On open, the app automatically sets white balance, exposure and denoise from the photo itself.
3. Tap foliage in the photo to fine-tune white balance — the classic IR move.
4. Pick a Look, adjust sliders to taste, then Export & Save.

Gestures

• Tap the photo — set white balance from that point (aim at foliage).
• Pinch — zoom (up to 8×); drag to pan while zoomed.
• Press & hold the photo (or the Hold: Original button) — compare with the original.

Looks & adjustments

Looks are one-tap recipes; every slider stays live afterwards so you can push further. Looks tagged R⇆B use the red⇆blue channel swap — the move that makes IR sky blue and foliage red/gold. Toggle the swap button to see its effect on any look. HIE glow is film-style halation — the HIE B&W look uses it, and the slider layers it onto any other look too.

Per-color moves the Sky and Foliage color bands independently — e.g. Aerochrome, then Sky hue +40 for a deeper sky without touching the trees. The bands follow the subject through a channel swap (Sky keeps meaning sky); the small text under each box shows the colors it's grabbing right now.

Which color tool when?

The color tools stack from broadest to most surgical — reach for the smallest one that does the job:

• Channel swap — flips the whole color world at once (red⇆blue). The IR move.
• Hue shift — rotates every color together, as far as you like. Use this for big moves: getting a color family into the right neighborhood.
• Per-color (Sky / Foliage) — each box owns half the color wheel, and they follow the swap.
• Color mixer — eight chips for surgery on one color. Use Pick color from photo: tap the button, tap the photo, and the chip owning that exact on-screen color selects itself.

A mixer chip bends only its own neighborhood on purpose: photos hold smooth color gradients (a sky drifts from cyan to blue), and nearby colors must land near each other or those gradients tear into visible bands. That's why a chip's Hue reaches ±60° and fades toward its neighbors — it's what keeps the adjustment invisible-clean. When one chip's reach isn't enough, make the big move with Hue shift first, then finish with the chip.

Light & area tools

• Clarity — punches up local structure (or softens, pulled left). Dehaze — cuts the veil that flattens distant subjects; brightness-only, so colors stay put.
• Tone curve + Luminance — the curve shapes blacks through highlights; Luminance lifts or drops the whole image without clipping either end.
• Masks — radial, gradient, or painted brush: local adjustments for one area only. Masks belong to the photo; saved looks stay portable.
• IR lens fixes — pulls down the center hot-spot IR-converted lenses produce, and corrects (or adds) corner vignette.

Profiles

.cube bakes your color look for Photoshop/video apps. .dcp is a Lightroom camera profile (beta). Denoise and glow are spatial effects and can't ride along in profiles.

Works with

JPEG/PNG from any camera · HEIC (in Safari) · RAW from any Bayer-sensor camera converted to DNG (free Adobe DNG Converter, or Lightroom's Convert to DNG) · Nikon NEF natively (classic compressed; not Z8/Z9 High-Efficiency) · Fujifilm X-Trans not supported. Tuned on an IR-converted Nikon Z50.

Install as an app

On iPad/iPhone: tap Safari's Share button (the square with the arrow), then Add to Home Screen. You get a full-screen app with its own icon that works offline. On Android/Chrome, use the browser's Install app menu entry.

Tips

• Import from Files, not the Photo Library — iOS silently converts RAW to JPEG there. A zipped RAW also works.
• Scenes with big empty dark skies take more Contrast; scenes with shadow detail (roads, dark trees) look best gentle.
• 720nm-filter shots are near-monochrome by nature — that's what B&W IR, Sepia IR and HIE B&W are for.